/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package com.example.chat.vo;

import java.util.HashMap;
import java.util.Map;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.TypeReference;

/**
 * 返回数据
 */
public class R extends HashMap<String, Object> {
    private static final long serialVersionUID = 1L;

    public R() {
        put("code", 0);
        put("msg", "success");
    }

    public static R error() {
        return error(500, "未知异常，请联系管理员");
    }

    public static R error(String msg) {
        return error(500, msg);
    }

    // public static R error(BizCodeEnum bizCodeEnum) {
    //     return error(bizCodeEnum.getCode(), bizCodeEnum.getMsg());
    // }

    public static R error(int code, String msg) {
        R r = new R();
        r.put("code", code);
        r.put("msg", msg);
        return r;
    }

    public static R ok(String msg) {
        R r = new R();
        r.put("msg", msg);
        return r;
    }

    public static R ok(Map<String, Object> map) {
        R r = new R();
        r.putAll(map);
        return r;
    }

    public static R ok() {
        return new R();
    }

    @Override
    public R put(String key, Object value) {
        super.put(key, value);
        return this;
    }

    /**
     * 设置 data 数据
     *
     * @param data data
     * @return {@link R}
     */
    public R setData(Object data) {
        put("data", data);
        return this;
    }

    /**
     * 获取 data 数据
     *
     * @param key key
     * @param typeReference {@link TypeReference}
     * @param <T> 泛型
     * @return T
     */
    public <T> T getData(String key, TypeReference<T> typeReference) {
        Object data = get(key);
        String jsonString = JSON.toJSONString(data);
        return JSON.parseObject(jsonString, typeReference);
    }

    /**
     * 获取 data 数据
     *
     * @param typeReference {@link TypeReference}
     * @param <T> 泛型
     * @return T
     */
    public <T> T getData(TypeReference<T> typeReference) {
        Object data = get("data");
        if (data == null) {
            return null;
        }
        String jsonString = JSON.toJSONString(data);
        return JSON.parseObject(jsonString, typeReference);
    }

    public String getMsg() {
        return (String) get("msg");
    }

    public Integer getCode() {
        return (Integer) this.get("code");
    }

}
